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Fast Multi-Reference Frame Motion Estimation Algorithm Using a Relation of Motion Vector with Distance of Each Reference Frame  

Byun, Ju-Won (Dept. of Electrical & Electronic Engineering, Yonsei University)
Choi, Jin-Ha (Dept. of Electrical & Electronic Engineering, Yonsei University)
Kim, Jae-Seok (Dept. of Electrical & Electronic Engineering, Yonsei University)
Publication Information
Abstract
This paper proposed a new fast multi-reference frame motion estimation algorithm. The proposed algorithm reduces search areas of motion estimation using a linear relation of motion vector with distance of each reference frame. New algorithm executes full search area motion estimation in reference frame 0 and reference frame 1. After that, search areas in reference frame 2, reference frame 3 and reference frame 4 are minimized by distance of each reference frame and results of motion estimation in reference frame 0 and reference frame 1. The proposed algorithm does not use a threshold value which is obstacle of hardware implementation and processing time schedule. Also, it reduced computation quantity of multi-reference motion estimation. Hardware implementation of multi-reference frame motion estimation is possible by these features. Simulation results show that PSNR drop and bitrate increase of proposed algorithm are lower than those of previous fast multi-reference frame motion estimation algorithm The number of computation of new algorithm is reduced 52.5% and quality of result is negligible when compared with full search area motion estimation which has 5 reference frames.
Keywords
H.264/AVC; Motion estimation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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